46aa6717ff
Mostly a revert of commit b1def7145f ("arch: deprecate `_current`").
This commit was part of PR #80716 whose initial purpose was about providing
an architecture specific optimization for _current. The actual deprecation
was sneaked in later on without proper discussion.
The Zephyr core always used _current before and that was fine. It is quite
prevalent as well and the alternative is proving rather verbose.
Furthermore, as a concept, the "current thread" is not something that is
necessarily architecture specific. Therefore the primary abstraction
should not carry the arch_ prefix.
Hence this revert.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
149 lines
2.4 KiB
C
149 lines
2.4 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include <string.h>
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#include <zephyr/kernel.h>
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#include <cmsis_os2.h>
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extern uint32_t sys_clock_tick_get_32(void);
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/**
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* @brief Get RTOS Kernel Information.
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*/
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osStatus_t osKernelGetInfo(osVersion_t *version, char *id_buf, uint32_t id_size)
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{
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uint32_t ver = sys_kernel_version_get();
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if (version != NULL) {
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version->api = ver;
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version->kernel = ver;
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}
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if ((id_buf != NULL) && (version != NULL)) {
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snprintf(id_buf, id_size,
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"Zephyr V%2"PRIu32".%2"PRIu32".%2"PRIu32,
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SYS_KERNEL_VER_MAJOR(version->kernel),
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SYS_KERNEL_VER_MINOR(version->kernel),
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SYS_KERNEL_VER_PATCHLEVEL(version->kernel));
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}
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return osOK;
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}
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/**
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* @brief Lock the RTOS Kernel scheduler.
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*/
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int32_t osKernelLock(void)
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{
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int temp = _current->base.sched_locked;
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if (k_is_in_isr()) {
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return osErrorISR;
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}
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k_sched_lock();
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return temp;
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}
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/**
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* @brief Unlock the RTOS Kernel scheduler.
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*/
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int32_t osKernelUnlock(void)
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{
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int temp = _current->base.sched_locked;
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if (k_is_in_isr()) {
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return osErrorISR;
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}
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k_sched_unlock();
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return temp;
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}
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/**
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* @brief Restore the RTOS Kernel scheduler lock state.
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*/
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int32_t osKernelRestoreLock(int32_t lock)
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{
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_current->base.sched_locked = lock;
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if (k_is_in_isr()) {
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return osErrorISR;
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}
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if (lock < 0) {
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return 1; /* locked */
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} else {
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return 0; /* not locked */
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}
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}
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/**
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* @brief Get the RTOS kernel tick count.
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*/
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uint32_t osKernelGetTickCount(void)
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{
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return sys_clock_tick_get_32();
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}
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/**
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* @brief Get the RTOS kernel tick frequency.
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*/
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uint32_t osKernelGetTickFreq(void)
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{
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return CONFIG_SYS_CLOCK_TICKS_PER_SEC;
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}
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/**
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* @brief Get the RTOS kernel system timer count.
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*/
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uint32_t osKernelGetSysTimerCount(void)
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{
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return k_cycle_get_32();
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}
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/**
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* @brief Get the RTOS kernel system timer frequency.
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*/
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uint32_t osKernelGetSysTimerFreq(void)
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{
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return sys_clock_hw_cycles_per_sec();
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}
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/**
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* @brief Wait for Timeout (Time Delay).
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*/
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osStatus_t osDelay(uint32_t ticks)
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{
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if (k_is_in_isr()) {
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return osErrorISR;
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}
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k_sleep(K_TICKS(ticks));
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return osOK;
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}
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/**
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* @brief Wait until specified time.
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*/
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osStatus_t osDelayUntil(uint32_t ticks)
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{
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uint32_t ticks_elapsed;
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if (k_is_in_isr()) {
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return osErrorISR;
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}
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ticks_elapsed = osKernelGetTickCount();
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k_sleep(K_TICKS(ticks - ticks_elapsed));
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return osOK;
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}
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